lead astray vs pervert

lead astray is not a noun while pervert is a noun.

Word	Noun	Adjective	Verb	Adverb
lead astray	No	No	Yes	No
pervert	Yes	No	Yes	No

As verbs, pervert is a hypernym of lead astray; that is, pervert is a word with a broader meaning than lead astray:

Other hypernyms of lead astray include corrupt, debase, debauch, demoralise, demoralize, deprave, misdirect, profane, subvert, vitiate.

lead astray (noun)	pervert (noun)
	a person whose behavior deviates from what is acceptable especially in sexual behavior

lead astray (verb)	pervert (verb)
cause someone to believe an untruth	change the inherent purpose or function of something
lead someone in the wrong direction or give someone wrong directions	practice sophistry; change the meaning of or be vague about in order to mislead or deceive
teach immoral behavior to	corrupt morally or by intemperance or sensuality